Karma is a perfect product for the family outing and provide upgrade to standard hand held camcorder, now they will have state of the art video capabilities.
State of the art? Not exactly. There's more post editing needed with GoPro, such as fisheye correction and saturation required. If you use M format for mitigate fisheye, you lose resolution.
There are lots of things to wait and see for a rational decision. I think Mavic will have more of these things below resolved or offered, more than Karma.
1. How is the compass calibrated? Have you ever calibrated a Yuneec drone? Oh my.
2. How long does it take to prepare and wait for the craft to be launch ready? Yuneec TH is like 3 to 4 min.
3. Can you set the RTH height? Yuneec didn't have this option for almost 2yrs, it was stuck at 60'.
4. Are expo settings supported to adjust linearity of the stick controls, smoothing out control of the craft (nobody else but DJI has this so far)
5. Hand launch and catch, is this even possible with the small landing gear of Karma?
6. Will the camera need charged separately, or does the drone battery charge it? IE, will an H4 work without a battery installed in the camera?
7. How bright is the built in display. It doesn't appear you can install a sunshade very easy. Yuneec's built-in display is mediocre, no options.
8. How much control over the camera settings will it have, using the remote? How intuitive and quick will the interface be?
9. Will it have redundant IMU and Compass sensors? This really helped the P4 minimize compass anomalies.
10. What's the range in the real world. It likely uses WiFi, like everyone else. I think 1000 meters is optimistic for Wifi in town, but in the wild or over water I think it's a reasonable estimate. However I expect Mavic to be WiFi also, so that's likely going to be similar range unless they have an antenna on the RC that can be mirrored with a windsurfer (IE, Phantom Std).
11. Will folks be OK with medium format resolution to mitigate fish-eye?
12. Can you only get the Hero 5 in the Karma bundle? Some folks won't like the NON-REPLACEABLE battery in the Hero 5, and want the Hero 4.
13. Is the gimbal pitch speed adjustable? Yuneec's was not on Q500. Is there "smoothing" supported on gimbal pitch control, so stopping a pitch movement isn't so sudden?
14. How stable is the craft hover to shoot a 2 second exposure night photo?
15. Now that I've gotten use to red lights in the front (unconventional) on my Phantoms, will I get confused with red lights in the back (more conventional) with Karma? Probably not an issue, but owning both setups in one fleet could pose some confusion at times.
16. How easy is it to replace a folding prop, and how expensive are they? Folding props cannot be balanced, will this be an issue? Unlikely.
17. With such short landing gear, is there more prop risk when landing, since it looks too risky to hand catch? Probably only in rocky areas.
I could go on, but these are "my thoughts".
You may think some of these issues above are minor nits, and for some people they are just nits, especially GoPro fans that will quickly look the other way. But I've grown to appreciate these niceties in the DJI software and hardware. The more the Go app features are used in the Mavic, the better, IMO. It's going to be an interesting comparison. I fly all time during my travels, vacation and business trips. I try to have all my sales calls done in time for the golden hour, with pre-planned locations to shoot. So having a more portable craft like the Karma or Mavic is an interesting option. Although I'm pretty happy with the portability of my P3P and P4, a Mavic may have a place in my fleet, but I'm not sure I can get along with Wifi communications. I had that in my Q500+ and wasn't happy.